tender for supply, testing, installation & commissioning of 3 nos. 8.5 ton ductable air conditioners at 220kv sub station, bbmb, kurukshetra , supply, testing, installation & commissioning of ductable air conditioner units equipped with highly efficient scroll compressors(s) with special pre coated heat exchanger, low noise condenser fan housed in compact housing duly powder coated. outdoor units shall have both cooing only mode, and environment friendly refrigerant r-410a. odu should have 100% capacity at 43 degree celsius and nonstop cooling up to 56 degree celsius. the duct able air conditioners system is well-suited for part load operation, which allows great functionally completed in all respect. make:- hitachi , ductable air conditioner, capacity 8.5 ton , installation, testing and commissioning of ductable air conditioners units, with nitrogen reprocessing, vacuuming, charging and top-up of r410a gas as per requirement at site complete as per specifications and drawings , installation, testing and commissioning of ductable unit capacity 8.5 ton , providing & fixing of inter connecting 22/18g copper piping between indoor & outdoor units as per manufacturer specifications duly insulated with closed cell nitrile foam tabular insulation of 13/19mm thickness , 1.1/8 hard copper (insulation 19mm) , 1/2 hard copper (insulation 19mm) , supplying, installing and testing of upvc pipe (heavy duty) with 6mm thick nitrile rubber insulation with protective coating as per the approved shop drawings and specification. tube insulation shall be covered with fiber glass cloth with acrylic compound , 25 mm , providing & fixing of shielded control cum transmission flexible copper wiring of in 25mm dia pvc conduits between indoor units & outdoor units , supply and fixing of ms stand for odu , loading and unloading of indoor and outdoor unit , supply installation testing and commissioning of refrigerant r-410 a , supply installation testing and commissioning of gi seat fabricated ducting for ductable nitrile insulation unit , supply installation testing and commissioning of canvass connection